JPH01176881A - Valve unit - Google Patents
Valve unitInfo
- Publication number
- JPH01176881A JPH01176881A JP33609787A JP33609787A JPH01176881A JP H01176881 A JPH01176881 A JP H01176881A JP 33609787 A JP33609787 A JP 33609787A JP 33609787 A JP33609787 A JP 33609787A JP H01176881 A JPH01176881 A JP H01176881A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- liquid
- main valve
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 10
- 238000013459 approach Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は弁装置に係り、貯水池、用水路などの多量の液
体の流路を開閉する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a valve device, and more particularly, to a device for opening and closing a flow path for a large amount of liquid such as a reservoir or an irrigation canal.
（従来の技術）
従来この種の弁装置は、例えば、実公昭５９−３１９７
８号公報に記載されているような主弁体に形成した副弁
孔を開閉する副弁体を設け、主弁体が開放方向に移動す
るときに副弁体が副弁孔を開放し、この主弁体の移動側
に主弁体と弁体案内部との間の水膜間隙から進入した液
体が排出され、主弁体の開放方向の開閉動作が円滑に行
われるようにした構造が採られている。しかしながらこ
の従来の弁装置では、主弁体が閉塞方向に移動するとき
に、液体流入口部から液体流出口部に弁座部を経て流れ
る流体によって主弁体には開放方向への力が作用し、こ
の力は主弁体が弁座部に接近したときに急激に消滅され
、主弁体は急激に弁座部に接触してｒ’ｌ１Ｍシ、ウォ
ータハンマ現象が生じる。そこで主弁体の弁座部に接触
する側に中空翼部を形成し、この翼部が液体によって主
弁体に開閉方向への力を受け、弁士弁体が急激に弁座部
に接触しないようにしている。(Prior art) Conventionally, this type of valve device was disclosed in, for example, the Japanese Utility Model Publication No.
A sub-valve body for opening and closing a sub-valve hole formed in a main valve body as described in Publication No. 8 is provided, and when the main valve body moves in the opening direction, the sub-valve body opens the sub-valve hole, The liquid that entered the moving side of the main valve body through the water film gap between the main valve body and the valve body guide is discharged, and the structure allows smooth opening and closing operations of the main valve body in the opening direction. It is taken. However, in this conventional valve device, when the main valve body moves in the closing direction, a force is applied to the main valve body in the opening direction by the fluid flowing from the liquid inlet to the liquid outlet through the valve seat. However, this force is rapidly eliminated when the main valve body approaches the valve seat, and the main valve body suddenly comes into contact with the valve seat, causing a water hammer phenomenon. Therefore, a hollow wing is formed on the side of the main valve body that contacts the valve seat, and this wing receives force from the liquid in the opening/closing direction on the main valve body, preventing the valve body from suddenly coming into contact with the valve seat. That's what I do.
（発明が解決しようとする問題点）
上記従来の弁装置では、主弁体が開放方向に移動すると
きには円滑に行われるが、主弁体が閉塞方向に移動する
場合には、弁体の閉塞方向の移動方向と反対側が真空圧
となるため、主弁体を閉塞方向に移動させるために大き
なト′ルクを必要とし、主弁体が弁座部に接近すると、
急激に真空圧が低下し、主弁体は閉鎖方向へ急激に移動
して閉塞し、ウォータハンマ現象が発生する問題があっ
た。(Problems to be Solved by the Invention) In the conventional valve device described above, when the main valve body moves in the opening direction, the movement is performed smoothly, but when the main valve body moves in the closing direction, the valve body is blocked. Since the side opposite to the direction of movement is vacuum pressure, a large torque is required to move the main valve body in the closing direction, and when the main valve body approaches the valve seat,
There was a problem in that the vacuum pressure suddenly decreased, and the main valve body suddenly moved in the closing direction and closed, causing a water hammer phenomenon.
本発明は上記問題点に鑑みなされたもので、主弁体を均
等な作動力で開放位置から閉塞位置まで移動するように
してウォータハンマ現象が生じることのない弁装置を提
供することを目的としたものである。The present invention was made in view of the above problems, and an object of the present invention is to provide a valve device in which the main valve body is moved from the open position to the closed position with uniform operating force, thereby preventing the water hammer phenomenon from occurring. This is what I did.
（発明の構成〕
（問題点を解決するための手段）
本発明の弁装置は、液流入口部を一側に開口するととも
に液流出口部を下部に開口した弁室にこの液流出口部に
対向して上部に略筒状の弁体案内部を形成した弁本体と
、下面中央部に副弁孔を形成するとともに下面に液抜弁
孔を開口しかつ上面中央部から前記副弁孔に向かって略
筒状に延在する操作軸案内筒部を形成するとともに上面
に液通孔を開口し前記弁本体の弁室に形成した弁体案内
部に案内されて進退され前記弁室の液流出口部を開閉す
る主弁体と、この主弁体の下面に形成した液抜弁孔を前
記主弁体の閉塞方向への進出時に河口しこの主弁体の開
放方向への後退時に閉塞する小弁体と、前記主弁体の操
作軸案内筒部に進退自在に嵌挿され下部に前記副弁孔を
開閉しこの副弁孔を開口する後退時に前記操作軸案内筒
部に係合される副弁体を下端に設けかつ上端部を前記弁
室の上面から前記弁本体の外方に突出させた操作軸と、
前記弁本体の弁室の上部に液通管を介して連通された下
部液通口と大気に開口した上部大気通口を形成した浮子
室とこの浮子室に設けられ前記下部液通口と上部大気通
口とを開閉する浮子とからなる浮子弁とを具備したこと
を特徴としたものである。(Structure of the Invention) (Means for Solving the Problems) The valve device of the present invention has a liquid inlet opening in a valve chamber having a liquid inlet opening on one side and a liquid outlet opening in a lower part. A valve body having a substantially cylindrical valve body guide formed in the upper part opposite to the main body, a sub-valve hole formed in the center part of the lower face, a drain valve hole opened in the lower face, and the sub-valve hole connected to the sub-valve hole from the center part of the upper face. An operating shaft guide cylinder is formed which extends in a substantially cylindrical shape toward the valve body, and a liquid passage hole is opened in the upper surface, and the liquid in the valve chamber is guided by a valve body guide formed in the valve chamber of the valve body and moved back and forth. A main valve element that opens and closes the outflow port, and a drain valve hole formed on the lower surface of the main valve element, which is closed when the main valve element advances in a closing direction and is closed when the main valve element retreats in an opening direction. A small valve body is fitted into the operating shaft guide cylinder portion of the main valve body so as to be able to move forward and backward, and is engaged with the operation shaft guide cylinder portion when the sub valve hole is opened and closed at the lower part and is retreated to open the sub valve hole. an operating shaft provided with a sub-valve body at its lower end and whose upper end protrudes outward from the valve body from the upper surface of the valve chamber;
A float chamber having a lower liquid vent communicating with the upper part of the valve chamber of the valve body via a liquid passage pipe and an upper atmospheric vent opening to the atmosphere; It is characterized by being equipped with a float valve consisting of a float that opens and closes the air vent.
（作用）
本発明の弁装置は、主弁体を開放する場合は、操作軸を
引くと、副弁体が副弁孔を開き、主弁体の移動側に主弁
体と弁体案内部との間の水膜間隙から進入した液体が排
出され、主弁体の開放方向の開閉動作が円滑に行われる
。またこのとき弁本体の弁室の上部に液通管を介して下
部液通口が連通された浮子弁の浮子室に液体が流入する
と、浮子が浮上し、大気に開口した上部大気通口を閉塞
し、液体が浮子弁から流出することがない。また主弁体
を閉塞する場合には、操作軸を押圧すると、主弁体の閉
鎖方向への移勲で主弁体の下面に形成した液抜弁孔を前
記小弁体が開口し、液体を液体流出口部側に流出される
とともに浮子弁の浮子室の液体が流出し、主弁体の開放
方向の移動側が真空圧となることがなく、またこのとき
浮子弁の浮子室の下部液通口は浮子にて閉塞され、大気
が弁本体側に流動することな（、主弁体は均等な作動力
で移動して液体流出口部を閉塞し、ウォータハンマ現象
が生じることがない。(Function) In the valve device of the present invention, when the main valve body is opened, when the operation shaft is pulled, the sub valve body opens the sub valve hole, and the main valve body and the valve body guide are placed on the moving side of the main valve body. The liquid that has entered through the water film gap between the main valve body and the main valve body is discharged, and the opening/closing operation of the main valve body in the opening direction is performed smoothly. At this time, when liquid flows into the float chamber of the float valve, which has a lower liquid port connected to the upper part of the valve chamber of the valve body via a liquid flow pipe, the float floats up and connects the upper air vent opened to the atmosphere. It is closed and no liquid can flow out of the float valve. In addition, when closing the main valve body, when the operating shaft is pressed, the small valve body opens the liquid drain hole formed on the lower surface of the main valve body by moving the main valve body in the closing direction, and drains the liquid. At the same time, the liquid in the float chamber of the float valve flows out to the liquid outlet side, and the moving side of the main valve body in the opening direction does not become vacuum pressure. The port is closed by a float, preventing atmospheric air from flowing toward the valve body (the main valve body moves with uniform operating force to close the liquid outlet, and water hammer phenomenon does not occur).
（実施例） 本発明の一実施個の構成を図面について説明する。(Example) The configuration of one embodiment of the present invention will be explained with reference to the drawings.
１は弁本体で、この弁本体１には液流入口部２が一側に
開口されているとともに液流出口部３が下部に開口され
た弁室４を有し、この弁室４にはこの液流出口部３に対
向して上部には略筒状の弁体案内部５が前記液流入口部
２の中間位置まで形成されている。Reference numeral 1 denotes a valve body, and the valve body 1 has a valve chamber 4 in which a liquid inlet 2 is opened on one side and a liquid outlet 3 is opened at the bottom. A substantially cylindrical valve body guide portion 5 is formed at an upper portion facing the liquid outlet portion 3 and extends to an intermediate position of the liquid inlet portion 2 .
６は主弁体で、この主弁体６は略筒状に形成され、下面
中央部には副弁孔７が形成され、ざらに下面に液抜弁孔
８が開口されている。またこの主弁体６の上面中央部か
ら前記副弁孔７に向かって略筒状に貫通して延在する操
作軸案内筒部９が形成されているとともに上面に複数の
液通孔１０が開口されている。さらにこの主弁体６の下
部周縁には翼部１２が前記弁本体１の液体流出口部３の
周縁部に形成した弁座部１１の内側の液体流出口部３に
互って突設されている。そしてこの主弁体６は前記弁本
体１の弁室４に形成した弁体案内部５に案内されて進退
され前記弁室４の液流出口部３の周縁に形成した弁座部
１１に接離してこの液体流出口部３を開閉するようにな
っている。Reference numeral 6 denotes a main valve body, which is formed into a substantially cylindrical shape, with a sub-valve hole 7 formed in the center of its lower surface, and a drain valve hole 8 roughly opened in its lower surface. Further, an operation shaft guide cylinder portion 9 is formed which extends from the center of the upper surface of the main valve body 6 toward the sub-valve hole 7 in a substantially cylindrical shape, and a plurality of liquid passage holes 10 are formed on the upper surface. It is opened. Further, on the lower peripheral edge of the main valve body 6, wing parts 12 are provided to protrude from the liquid outlet part 3 inside the valve seat part 11 formed at the peripheral edge of the liquid outlet part 3 of the valve body 1. ing. The main valve body 6 is guided by a valve body guide portion 5 formed in the valve chamber 4 of the valve body 1, moves back and forth, and comes into contact with a valve seat portion 11 formed at the periphery of the liquid outlet portion 3 of the valve chamber 4. The liquid outlet portion 3 is opened and closed by separating the two.
また１３は小弁体で、この小弁体１３は前記主弁体６の
下面に形成した液抜弁孔８を前記主弁体６の閉塞方向へ
の進出時に開口しこの主弁体６の開放方向への後退時に
閉塞するようになっている。Reference numeral 13 denotes a small valve element, which opens a liquid drain hole 8 formed on the lower surface of the main valve element 6 when the main valve element 6 advances in the closing direction, thereby opening the main valve element 6. It is designed to close when retreating in the direction.
さらに１４は操作軸で、この操作軸１４には、前記主弁
体６の操作軸案内筒部９に進退自在に嵌挿され下部に前
記副弁孔７を開閉しこの副弁孔７を開口する後退時に前
記操作軸案内筒部９の下端部に係合される副弁体１５を
下端に設けかつ上端部を前記弁室４の上面から前記弁本
体１の外方に液密に突出されている。そしてこの操作軸
１４は前記弁本体１の上面に固定されている支持筒部１
６内に進退自在に設けられた筒状の昇降台１７の下部に
固定され、この昇降台１７は図示しない突起と前記支持
筒部１６の溝との係合で回り止めされて進退されるよう
になっており、この昇降台１７にコイルスプリング１８
を介して接続したねじ台１９は回り止めされてこの昇降
台１７に進退自在に嵌合されている。またこのねじ台１
９に螺合したねじ操作軸２０は前記支持筒部１６の上面
部に回動自在に支持され、このねじ操作軸２０の支持筒
部１６の上面から突出した部分には操作ハンドル２１が
取付けられている。Furthermore, reference numeral 14 denotes an operating shaft, which is fitted into the operating shaft guide cylinder portion 9 of the main valve body 6 so as to be able to move forward and backward. A sub-valve element 15 is provided at the lower end to be engaged with the lower end part of the operating shaft guide cylinder part 9 when retracting, and the upper end part is protruded from the upper surface of the valve chamber 4 to the outside of the valve body 1 in a liquid-tight manner. ing. This operating shaft 14 is connected to a support cylinder portion 1 fixed to the upper surface of the valve body 1.
It is fixed to the lower part of a cylindrical lifting platform 17 that is provided in the support tube 6 so as to be movable back and forth. A coil spring 18 is attached to this lifting platform 17.
The screw head 19 connected via the screw base 19 is fitted into the lifting table 17 so as to be able to move forward and backward while being prevented from rotating. Also, this screw head 1
A screw operating shaft 20 screwed into the screw operating shaft 20 is rotatably supported on the upper surface of the support cylinder 16, and an operating handle 21 is attached to a portion of the screw operating shaft 20 that protrudes from the upper surface of the support cylinder 16. ing.
さらに前記弁本体１の弁室４の上部に液通管２２を介し
て連通された下部液通口２３を有する浮子室２４を形成
した浮子弁２５が設けられ、この浮子弁２５の浮子室２
４の上部に大気に開口した上部大気通口２６が形成され
、この浮子室２４には前記下部液通口２３と上部大気通
口２６とを交互に開閉する浮子２７が設けられている。Furthermore, a float valve 25 is provided in the upper part of the valve chamber 4 of the valve body 1, and the float valve 25 has a float chamber 24 having a lower liquid passage port 23 communicated with the valve body 1 through a liquid passage pipe 22.
An upper air vent 26 that opens to the atmosphere is formed in the upper part of the float chamber 24, and a float 27 that alternately opens and closes the lower liquid vent 23 and the upper air vent 26 is provided in the float chamber 24.
次にこの実施例の作用を説明する。Next, the operation of this embodiment will be explained.
弁本体１の流体流出口部３を開放する場合には、操作ハ
ンドル２１を回動する。この操作ハンドル２１の回動で
ねじ操作軸２０が回動され、このねじ操作＠２０が螺合
されたねじ台１９が上方に移動され、このねじ台１９に
スプリング１８を介して連結された昇降台１７が上昇さ
れ、操作軸１４は上昇される。この操作軸１４の上昇で
副弁体１５が副弁孔７を開口する。この副弁孔７の開口
で、弁体案内部５と主弁体６との間の水膜間隙から弁室
４の上部と主弁体６の内部に流入されている液体が液通
孔１０および副弁孔７から流体流出口部３に流出され、
さらに操作軸１４が上昇されると、Ｄ１弁体１５が操作
軸案内部９に係合され、主弁体６は弁座部１１から離反
され、流体流出口部３は開口され、主弁体６は小さいト
ルクで容易に上昇される。またこの主弁体６の上昇で液
通管２２から浮子弁２５の浮子室２４に流入した液体で
浮子２７は浮上し、大気通口２６は浮子２７でｒｆＩ塞
され、液体が流出することがない。When opening the fluid outlet portion 3 of the valve body 1, the operating handle 21 is rotated. The screw operation shaft 20 is rotated by the rotation of the operation handle 21, and the screw head 19 to which this screw operation @20 is screwed is moved upward, and the elevator connected to the screw head 19 via the spring 18 is moved upward. The platform 17 is raised, and the operating shaft 14 is raised. As the operation shaft 14 rises, the sub-valve body 15 opens the sub-valve hole 7. At the opening of the sub-valve hole 7, the liquid flowing into the upper part of the valve chamber 4 and the inside of the main valve body 6 from the water film gap between the valve body guide part 5 and the main valve body 6 is allowed to flow into the liquid passage hole 10. and flows out from the sub-valve hole 7 to the fluid outlet portion 3,
When the operating shaft 14 is further raised, the D1 valve body 15 is engaged with the operating shaft guide portion 9, the main valve body 6 is separated from the valve seat portion 11, the fluid outlet portion 3 is opened, and the main valve body 6 is easily raised with small torque. Furthermore, as the main valve body 6 rises, the liquid flowing from the liquid passage pipe 22 into the float chamber 24 of the float valve 25 causes the float 27 to float, and the air vent 26 is blocked by the float 27 with rfI, preventing the liquid from flowing out. do not have.
また弁本体１の流体流出口部３を閉塞する場合には、操
作ハンドル２１を先と反対方向に回動する。この操作ハ
ンドル２１の回動でねじ操作＠２０を螺合されたねじ台
１９が下方に移動され、このねじ台１９にスプリング１
８を介して連結された昇降台１７が下降され、操作軸１
４は下降される。この操作軸１４の下降で副弁体１５が
副弁孔７を閉塞し、主弁体６は下降される。このとき小
弁体１３が主弁体６の液抜弁孔８を開き、主弁体６の上
部に弁体案内部５と主弁体６との間の水膜間隙から流入
されている液体が液抜弁孔８から液体流出口部３に流出
され、また弁室４の上部の液面が低下すると、浮子弁２
５の浮子２７が下降し、主弁体６の上部が真空圧となる
ことなく、主弁体６は小さいトルクで下降される。そし
て浮子弁２５の浮子室２４の液面が低下する浮子２７が
下部液通口２３を閉塞し、弁室４の上部に空気が流入す
ることなく、主弁体６は円滑に下降し、主弁体６が弁座
部１１に接近すると、主弁体６のｍ部１２が弁座部１１
を流れる液体の押し上げ作用が急激に消滅することなく
、主弁体６は均等な操作力で均等に下降し、患部に流体
流出口部３を閉塞することがなく、ウォータハンマ現象
を生じることがない。そして主弁体６が弁座部１１に接
触したときに、操作ハンドル２１の回動を継続した場合
、ねじ操作軸２０を螺合されたねじ台１９がスプリング
１８を介して昇降台１７に連結されているため、スプリ
ング１８が収縮し、主弁体６が弁座部１１に必要以上の
圧接力で圧接されて破損することを防止している。When closing the fluid outlet 3 of the valve body 1, the operating handle 21 is rotated in the opposite direction. By this rotation of the operation handle 21, the screw base 19 to which the screw operation @20 is screwed is moved downward, and the spring 1 is attached to this screw base 19.
The lifting platform 17 connected via the shaft 8 is lowered, and the operating shaft 1
4 is lowered. By lowering the operating shaft 14, the sub-valve body 15 closes the sub-valve hole 7, and the main valve body 6 is lowered. At this time, the small valve body 13 opens the liquid drain valve hole 8 of the main valve body 6, and the liquid flowing into the upper part of the main valve body 6 from the water film gap between the valve body guide part 5 and the main valve body 6 is allowed to flow into the upper part of the main valve body 6. When the liquid flows out from the liquid drain valve hole 8 to the liquid outlet part 3 and the liquid level in the upper part of the valve chamber 4 decreases, the float valve 2
The float 27 of No. 5 is lowered, and the main valve element 6 is lowered with a small torque without creating a vacuum pressure in the upper part of the main valve element 6. Then, the float 27, which lowers the liquid level in the float chamber 24 of the float valve 25, blocks the lower liquid port 23, and the main valve body 6 smoothly descends without air flowing into the upper part of the valve chamber 4. When the valve body 6 approaches the valve seat part 11, the m part 12 of the main valve body 6 approaches the valve seat part 11.
The main valve body 6 descends evenly with an even operating force without the pushing up action of the liquid flowing through the valve body suddenly disappearing, and the fluid outflow port 3 is not blocked in the affected area, thereby preventing the occurrence of water hammer phenomenon. do not have. When the main valve body 6 contacts the valve seat 11 and the operation handle 21 continues to rotate, the screw base 19 into which the screw operation shaft 20 is screwed is connected to the lifting platform 17 via the spring 18. This prevents the spring 18 from contracting and the main valve body 6 from being pressed against the valve seat portion 11 with an unnecessarily high pressure force and being damaged.
本発明によれば、主弁体が流体流出口部を閉塞するとき
に、水膜間隙から進入した液体が流出され、主弁体に真
空圧が掛かることなく、軽い操作トルクで閉塞方向に移
動し、また弁室が大気に連通ずることがないので、主弁
体は急激に閉塞することがなく、ウォータハンマ現象が
生じることがないものである。According to the present invention, when the main valve body closes the fluid outlet portion, the liquid that has entered through the water film gap is discharged, and the main valve body is moved in the closing direction with a light operating torque without applying vacuum pressure. Furthermore, since the valve chamber does not communicate with the atmosphere, the main valve body does not become suddenly blocked, and the water hammer phenomenon does not occur.
第１図は本発明の一実施例を示す弁装置の縦断面図、第
２図は同上小弁体部の拡大縦断面図である。
１・・弁本体、２・・流体流入口部、３・・流体流出口
部、４・・弁室、５・・弁体案内部、６・・主弁体、７
・・副弁孔、８・・液抜弁孔、９・・操作軸案内筒部、
１０・・液通孔、１３・・小弁体、１４・・操作軸、２
２・・液通管、２３・・下部液通口、２４・・浮子室、
２５・・浮子弁、２６・・上部大気通口、２７・・浮子
。FIG. 1 is a longitudinal sectional view of a valve device showing one embodiment of the present invention, and FIG. 2 is an enlarged longitudinal sectional view of the same small valve body. 1. Valve body, 2. Fluid inlet, 3. Fluid outlet, 4. Valve chamber, 5. Valve body guide, 6. Main valve body, 7.
・・Sub-valve hole, 8.・Drain valve hole, 9.・Operation shaft guide cylinder part,
10...Liquid passage hole, 13...Small valve body, 14...Operation shaft, 2
2...Liquid passage pipe, 23...Lower liquid passage port, 24...Float chamber,
25... Float valve, 26... Upper atmosphere vent, 27... Float.
Claims (1)
を下部に開口した弁室にこの液流出口部に対向して上部
に略筒状の弁体案内部を形成した弁本体と、 下面中央部に副弁孔を形成するとともに下面に液抜弁孔
を開口しかつ上面中央部から前記副弁孔に向かって略筒
状に延在する操作軸案内筒部を形成するとともに上面に
液通孔を開口し前記弁本体の弁室に形成した弁体案内部
に案内されて進退され前記弁室の液流出口部を開閉する
主弁体と、この主弁体の下面に形成した液抜弁孔を前記
主弁体の閉塞方向への進出時に開口しこの主弁体の開放
方向への後退時に閉塞する小弁体と、前記主弁体の操作
軸案内筒部に進退自在に嵌挿され下部に前記副弁孔を開
閉しこの副弁孔を開口する後退時に前記操作軸案内筒部
に係合される副弁体を下端に設けかつ上端部を前記弁室
の上面から前記弁本体の外方に突出させた操作軸と、前
記弁本体の弁室の上部に液通管を介して連通された下部
液通口と大気に開口した上部大気通口を形成した浮子室
とこの浮子室に設けられ前記下部液通口と上部大気通口
とを開閉する浮子とからなる浮子弁と を具備したことを特徴とした弁装置。(1) A valve body having a valve chamber with a liquid inlet opening on one side and a liquid outlet opening at the bottom, and a substantially cylindrical valve body guide formed at the upper part facing the liquid outlet. A sub-valve hole is formed in the center of the lower surface, a drain valve hole is opened in the lower surface, and an operation shaft guide cylinder part is formed that extends in a substantially cylindrical shape from the center of the upper surface toward the sub-valve hole, and the upper surface is formed with an auxiliary valve hole. a main valve body that opens a liquid passage hole in the valve body and moves forward and backward while being guided by a valve body guide portion formed in the valve chamber of the valve body to open and close a liquid outlet portion of the valve chamber; and a main valve body formed on the lower surface of the main valve body. a small valve element that opens the drain valve hole when the main valve element advances in the closing direction and closes when the main valve element retreats in the opening direction; A sub-valve body is provided at the lower end, which is fitted into the sub-valve hole and is engaged with the operating shaft guide cylinder portion when retracting to open the sub-valve hole. an operating shaft protruding outward from the valve body; a float chamber having a lower liquid port communicating with the upper part of the valve chamber of the valve body via a liquid passage pipe and an upper atmosphere vent opening to the atmosphere; A valve device comprising a float valve provided in the float chamber and comprising a float for opening and closing the lower liquid vent and the upper atmosphere vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33609787A JPH01176881A (en) | 1987-12-28 | 1987-12-28 | Valve unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33609787A JPH01176881A (en) | 1987-12-28 | 1987-12-28 | Valve unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01176881A true JPH01176881A (en) | 1989-07-13 |
| JPH0451705B2 JPH0451705B2 (en) | 1992-08-19 |
Family
ID=18295663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33609787A Granted JPH01176881A (en) | 1987-12-28 | 1987-12-28 | Valve unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01176881A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339679U (en) * | 1989-08-30 | 1991-04-17 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20092050A1 (en) | 2009-11-23 | 2011-05-24 | Siae Microelettronica Spa | SHOCK ABSORBER DEVICE FOR INTEGRATED MICROWAVE OPERATING CIRCUITS AND RELATED DAMPING CIRCUIT |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53160826U (en) * | 1977-05-23 | 1978-12-16 |
-
1987
- 1987-12-28 JP JP33609787A patent/JPH01176881A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53160826U (en) * | 1977-05-23 | 1978-12-16 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339679U (en) * | 1989-08-30 | 1991-04-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0451705B2 (en) | 1992-08-19 |
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